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Celsiella
''Celsiella'' is a small genus of glass frogs endemic to Venezuela. It was established in 2009 and named in honour of Josefa Celsa Señaris, nicknamed "Celsi", a Venezuelan herpetologist who had worked with glass frogs. Description The ventral parietal peritoneum is white anteriorly and transparent posteriorly. The bones are pale green or green. Male ''Celsiella'' call from, and females deposit their eggs on the underside or upper side of leaves. Tentative evidence suggests that males guard their eggs. Taxonomy Monophyly of ''Celsiella'' is strongly supported by genetic data. It is also morphologically distinct from the closely related genus ''Hyalinobatrachium''species of which have completely transparent venters, white liver, and white bones. It was erected in 2009; its species composition has not changed afterwards. Species There are two species: * ''Celsiella revocata ''Celsiella revocata'' is a species of frog in the family Centrolenidae. It is endemic to the Venezuel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsiella
''Celsiella'' is a small genus of glass frogs endemic to Venezuela. It was established in 2009 and named in honour of Josefa Celsa Señaris, nicknamed "Celsi", a Venezuelan herpetologist who had worked with glass frogs. Description The ventral parietal peritoneum is white anteriorly and transparent posteriorly. The bones are pale green or green. Male ''Celsiella'' call from, and females deposit their eggs on the underside or upper side of leaves. Tentative evidence suggests that males guard their eggs. Taxonomy Monophyly of ''Celsiella'' is strongly supported by genetic data. It is also morphologically distinct from the closely related genus ''Hyalinobatrachium''species of which have completely transparent venters, white liver, and white bones. It was erected in 2009; its species composition has not changed afterwards. Species There are two species: * ''Celsiella revocata ''Celsiella revocata'' is a species of frog in the family Centrolenidae. It is endemic to the Venezuel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsiella Revocata
''Celsiella revocata'' is a species of frog in the family Centrolenidae. It is endemic to the Venezuelan Coastal Range. Its common name, El Tovar glass frog, refers to its type locality, Colonia Tovar. Its natural habitats are montane forests along streams; it is usually found on vegetation above the streams. ''Celsiella revocata'' is a common frog in undisturbed habitats but threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... Its total population is decreasing. References Celsiella Amphibians of Venezuela Endemic fauna of Venezuela Taxa named by Juan A. Rivero Taxonomy articles created by Polbot Amphibians described in 1985 {{Centrolenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsiella Vozmedianoi
''Cochranella vozmedianoi'' (in Spanish: ''ranita de cristal de Paria'') is a species of frog in the family Centrolenidae, endemic to the Cerro El Humo, in the Paria Peninsula in northern Venezuela. Description Males measure in snout–vent length and have shagreen dorsal skin with low warts. Snout is truncate. Habitat and conservation Its natural habitat is tropical humid forest at asl. It occurs along streams. Eggs are laid on the upper sides of leaves overhanging streams. Its conservation status is uncertain, although habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ... from agricultural development and the clearance of vegetation overhanging streams is a threat. References {{Taxonbar, from=Q28056827 Celsiella Amphibians of Venezuela Endemic fauna of Venezu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josefa Celsa Señaris
Josefa Celsa Señaris (born 2 November 1965) is a Venezuelan herpetologist. She has published information about frogs and she has identified new genera and species. Señaris is the director of the La Salle Foundation's Natural History Museum (Spanish: ''Museo de historia natural La Salle - MhnLS'') in Caracas. Life Señaris was born in 1965 and she obtained a degree in biology at the Central University of Venezuela and her doctorate in 2001 at the University of Santiago de Compostela in Spain. She is interested in the fauna of Venezuela, in particular the Guayana Region where table-top mountains called tepuis provide habitats for endemic plant and animal species: some amphibians are known only from a single tepuy. From a geological point of view, the tepuis have been isolated for approximately 120 million years, and it has been suggested that the tepuy habitats are a "lost world" that could support relictual populations. ''The Lost World'', Conan Doyle's novel featuring living di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Manuel Guayasamin
Juan Manuel Guayasamin (born 1974) is an Ecuadorian biologist. He earned his Ph.D. in 2007 from University of Kansas, Department of Ecology and Evolutionary Biology and as of 2017 he is working as professor at Universidad San Francisco de Quito in Ecuador. His research interests include the evolution of glass frogs (Centrolenidae) and direct-developing anurans. His main contributions have been: phylogenetic taxonomy of glassfrogs, description of the variation of skin texture in frogs, description of numerous species of amphibians and reptiles, and a monographic review of all Ecuadorian glassfrogs (60 species). A team led by Juan M. Guayasamin discovered '' Hyalinobatrachium yaku'' in May 2017, a glassfrog with transparent venter. To date (2020), he has described a total of 6 amphibian genera, 55 species of amphibians, and 11 reptiles, including two geckos from the Galápagos Islands. Genera described * Celsiella * Chimerella * Espadarana * Ikakogi ''Ikakogi'' is a genus o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Frog
The glass frogs belong to the amphibian family Centrolenidae ( order Anura). While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, giving the glass frog its common name. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through the skin. When active their blood makes them visible; when sleeping most of the blood is concealed in the liver, hiding them. Glass frogs are arboreal, living mainly in trees, and only come out for mating season. Their transparency conceals them very effectively when sleeping on a green leaf, as they habitually do. Taxonomy The first described species of Centrolenidae was the "giant" '' Centrolene geckoideum'', named by Marcos Jiménez de la Espada in 1872, based on a specimen collected in northeastern Ecuador. Several species were described in subsequent years by different herpetologists (including G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Frogs
The glass frogs belong to the amphibian family Centrolenidae ( order Anura). While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, giving the glass frog its common name. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through the skin. When active their blood makes them visible; when sleeping most of the blood is concealed in the liver, hiding them. Glass frogs are arboreal, living mainly in trees, and only come out for mating season. Their transparency conceals them very effectively when sleeping on a green leaf, as they habitually do. Taxonomy The first described species of Centrolenidae was the "giant" '' Centrolene geckoideum'', named by Marcos Jiménez de la Espada in 1872, based on a specimen collected in northeastern Ecuador. Several species were described in subsequent years by different herpetologists (including G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalinobatrachium
''Hyalinobatrachium'' is a genus of glass frogs, family Centrolenidae. They are widely distributed in the Americas, from tropical Mexico to southeastern Brazil and Argentina. Taxonomy and systematics The genus is currently defined to include ''Hyalinobatrachium fleischmanni'' and its closest relatives. Its sister taxon is ''Celsiella''. Some species formerly in this genus are now in '' Vitreorana'' or '' Teratohyla''. Description ''Hyalinobatrachium'' have a bulbous liver covered by white pigment, a transparent parietal peritoneum, and lack a humeral spine in adult males. The bones are white in living animals. Males usually call from the underside of leaves. Females deposit one layer of eggs on the underside of leaves. Species As of March 2022, these species are included in the genus: * '' Hyalinobatrachium adespinosai'' Guayasamin, Vieira, Glor, and Hutter, 2019 * '' Hyalinobatrachium anachoretus'' Twomey, Delia, and Castroviejo-Fisher, 2014 * '' Hyalinobatrachium aureoguttatum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Venezuela
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of South America
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian Genera
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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